JCYMELE USB-C to 3 HDMI Adapter 4K60Hz MST Hub

JCYMELE USB‑C to 3 HDMI adapter lets one USB‑C/Thunderbolt port drive up to three HDMI displays while delivering up to 100W pass‑through charging.

Designed for professionals who need extra screen real estate, this compact MST hub converts a compatible USB‑C or Thunderbolt 3/4 source into three independent HDMI outputs. It supports high‑resolution video, plug‑and‑play setup, and power delivery so you can keep a laptop charged while running multiple external monitors. Read on to understand how it behaves, what limits to expect, and whether it fits your workflow.

How many monitors can I run and in what modes?

The JCYMELE hub supports three HDMI displays simultaneously and offers both extended and mirrored configurations. In Extended (MST) mode each screen can show a different output where your system and graphics hardware permit, while Mirror mode duplicates the same image across all monitors.

• 1 in → 3 out HDMI ports for three screens.
• Extended (MST) allows independent displays when the source supports MST (Windows/Thunderbolt GPUs).
• Mirror mode duplicates the same content across all connected HDMI screens.
• Note: macOS does not support MST for independent multi‑monitor outputs; check your laptop's Thunderbolt/GPU support.

What resolutions and refresh rates are supported?

This adapter is built for high‑definition workflows and supports up to 4K at 60Hz on compatible outputs. Actual resolution across three screens depends on your graphics card and the chosen output combination.

• Up to 4K60Hz on supported HDMI outputs for crisp video and detail work.
• When all three outputs are used: two ports can run 4K60Hz and the third may run 1080p60 or 4K30 depending on GPU limits.
• Requires a graphics card and source that can drive multiple high‑res displays.

Can I charge my laptop while using the hub?

Yes — the hub includes PD100W pass‑through power delivery so you can power or charge a laptop while the adapter is in use. Use your laptop's USB‑C power adapter (not included) to supply the hub and connected devices.

• Supports up to 100W PD input to keep a connected laptop charged.
• No separate power brick included; use your existing USB‑C charger for full power.
• Output power delivered may vary by laptop model and power negotiation.

Is setup difficult and what about compatibility?

Setup is straightforward: plug the hub into a compatible USB‑C or Thunderbolt port and connect HDMI cables to your monitors. It is driver‑free for most systems, but correct behavior depends on your computer's OS and GPU capabilities.

• Plug‑and‑play operation with no driver installation required.
• Works best with Thunderbolt 3/4 or USB‑C ports that expose DisplayPort Alt Mode.
• Not compatible with passive USB‑C conversion cables or docking stations used to feed the hub's USB‑C input.

Who is this for: The JCYMELE USB‑C to 3 HDMI adapter is aimed at remote workers, designers, traders, and multitaskers who need three external displays from a single USB‑C/Thunderbolt port while keeping their laptop charged. Choose this hub if your laptop or graphics card supports multiple high‑resolution outputs and you value a compact, driver‑free solution for extending workspace productivity.